thermal: tsens: Suppress bind/unbind attributes

TSENS driver does not support manual bind/unbind operations
through sysfs. Suppress the bind/unbind nodes. Also, remove the
tsens device struct from the global list when driver remove
function is called.

Change-Id: I97d4cc739adecfb6555786d7cef6c9556f5f8eff
Signed-off-by: Siva Kumar Akkireddi <sivaa@codeaurora.org>